Documentation/devicetree/bindings/sound/rt5645.txt

   1 RT5650/RT5645 audio CODEC
   2
   3 This device supports I2C only.
   4
   5 Required properties:
   6
   7 - compatible : One of "realtek,rt5645" or "realtek,rt5650".
   8
   9 - reg : The I2C address of the device.
  10
  11 - interrupts : The CODEC's interrupt output.
  12
  13 Optional properties:
  14
  15 - hp-detect-gpios:
  16   a GPIO spec for the external headphone detect pin. If jd-mode = 0,
  17   we will get the JD status by getting the value of hp-detect-gpios.
  18
  19 - realtek,in2-differential
  20   Boolean. Indicate MIC2 input are differential, rather than single-ended.
  21
  22 - realtek,dmic1-data-pin
  23   0: dmic1 is not used
  24   1: using IN2P pin as dmic1 data pin
  25   2: using GPIO6 pin as dmic1 data pin
  26   3: using GPIO10 pin as dmic1 data pin
  27   4: using GPIO12 pin as dmic1 data pin
  28
  29 - realtek,dmic2-data-pin
  30   0: dmic2 is not used
  31   1: using IN2N pin as dmic2 data pin
  32   2: using GPIO5 pin as dmic2 data pin
  33   3: using GPIO11 pin as dmic2 data pin
  34
  35 -- realtek,jd-mode : The JD mode of rt5645/rt5650
  36    0 : rt5645/rt5650 JD function is not used
  37    1 : Mode-0 (VDD=3.3V), two port jack detection
  38    2 : Mode-1 (VDD=3.3V), one port jack detection
  39    3 : Mode-2 (VDD=1.8V), one port jack detection
  40
  41 Pins on the device (for linking into audio routes) for RT5645/RT5650:
  42
  43   * DMIC L1
  44   * DMIC R1
  45   * DMIC L2
  46   * DMIC R2
  47   * IN1P
  48   * IN1N
  49   * IN2P
  50   * IN2N
  51   * Haptic Generator
  52   * HPOL
  53   * HPOR
  54   * LOUTL
  55   * LOUTR
  56   * PDM1L
  57   * PDM1R
  58   * SPOL
  59   * SPOR
  60
  61 Example:
  62
  63 codec: rt5650@1a {
  64         compatible = "realtek,rt5650";
  65         reg = <0x1a>;
  66         hp-detect-gpios = <&gpio 19 0>;
  67         interrupt-parent = <&gpio>;
  68         interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
  69         realtek,dmic-en = "true";
  70         realtek,en-jd-func = "true";
  71         realtek,jd-mode = <3>;
  72 };